火箭

Launch dynamics and transfer matrix method of multibody system are used to develop a launch dynamics model, equations of vibration characteristics and dynamic response. The firing dispersion test method of a non-full loading fire rocket based on the idea of equal initial disturbance is presented.

应用发射动力学和多体系统传递矩阵法理论，建立了多管火箭发射动力学模型，推导出了多管火箭振动特性和动力响应方程，形成了基于等起始扰动思想的多管火箭非满管射击密集度试验方法。

Unpiloted and looking rather like a large, fat fighter aeroplane , it is launched from a converted Boeing 747. Having released the upper stage at about one half satellite speed, the rocket-powered lower stage glides back to base and lands

X-34无人驾驶，外观更像一个庞大的战斗机，它从一个经过改造的波音747飞机上发射，当以约为卫星的一半速度释放上部一级火箭后，采用火箭发动机驱动的下部一级火箭就滑降回基地并着陆。

There are die-hard Rockets fans who were here way before people heard of the name Yao Ming; there are other fans who were NBA hoops fan in general, but became of Yao joining the team; then you have the so called fand who didn't know/watch much about NBA basketball until Yao join the league.

在人们听到姚明这个名字之前，在这的都是火箭的铁杆球迷，但是，也有另外一些 NBA 球迷是因为姚明加入了火箭后，变成火箭球迷的。然后又有了很多，在姚明没有加入联盟之前，那些对 NBA 篮球，很少了解和观看的球迷。

A meeting of Germany's early rocket pioneers, including Rudolph Nebel at left, Hermann Oberth, to the right of the rocket, Klaus Riedel, holding the small rocket, and behind him the dapper young Wernher von Braun.

会晤德国总统提前火箭先驱，包括1941鲁道夫在左边赫尔曼Oberth，到右边的火箭，克劳里德尔，举办小型火箭而身后的短小精华wernhervon百灵。

Armament, totalling up to 4,000 kg (8,818 lb), includes 250 kg and 500 kg bombs, B-8M1 packs of 20 Ч 80 mm rockets, B-13L packs of five 122 mm rockets, S-250FM 250 mm rockets, KMGU-2 cluster bombs, or podded SPPU-22 30 mm gun with optional downward-deflecting barrel for air-to-ground and air-to-air use.

少了点吧，飞豹都可以达到8吨了），包括250和500公斤炸弹， B8 B-8M1 80mm火箭巢、B13L 122mm 火箭巢、S-250FM 250 mm火箭巢、 KMGU-2集束炸弹、SPPU-22 30mm机炮。…中国本地制造的机型称为歼11…有些后期出口的机型可能拥有升级的雷达和6200公斤的载弹量，据制造商的宣传手册，载弹量甚至达到8000公斤。

According to the air trajectory of every rocket-assisted torpedo part, we establish an equation group of air vertical motion, improve the in-air trajectory model, and simulatively calculate the polynomials of firing distance and flight time,and firing distance and shut down time. Making use of the polynomials, we calculate the cooperative time of formation salvo of torpedoes, and determine command ways for different situations. The result may facilitate the research of operational application of rocket-assisted torpedo.

根据火箭助飞鱼雷空中运动各部分的特点，建立了其空中纵向运动方程组，完善了空中弹道模型，仿真计算了射程-飞行时间和射程-关机时间关系多项式，利用关系式计算了编队齐射火箭助飞鱼雷的协同时间，确定了不同态势下的指挥方式，为深入研究火箭助飞鱼雷编队作战使用问题提供了重要的参考数据和理论依据。

The altitude characteristics and velocity characteristics of three types of solid ducted rocket, which are choked solid ramrocket with fixed mass flow rate of fuelrich gas generator, unchoked one and the one working under fixed mass ratio of air to fuel, were numerically studied.

通过数值计算，分析了燃气流量固定的壅塞式固体火箭冲压发动机、等空燃比工作的固体火箭冲压发动机和非壅塞固体火箭冲压发动机的高度特性和速度特性。

The results showed that the performance of unchoked ducted rocket is superior to that of choked one. When the gas generator is loaded with high burning-rate exponent fuel-rich propellant, the performance of unchoked ducted rocket is almost the same as that of the ducted rocket working under fixed mass ratio of fuel to air.

研究结果表明：非壅塞固体火箭冲压发动机的性能显著优于燃气流量不可调的壅塞式固体火箭冲压发动机；当贫氧推进剂具有高的燃速压强指数时，非壅塞固体火箭冲压发动机的性能接近燃气流量完全调节、以等空燃比工作的冲压发动机性能。

February 15, 1996, the Long Route B first launch to the International Telecommunications Satellite 708, Rockets 22 seconds after take-off attitude out of control, fully loaded with fuel into the rocket launch tower from 1850 m on the slopes, the location of the explosion just in the space program Technical personnel living quarters near the strong blast destroyed the moment the steel and concrete construction, was killed 6 people and injuring 57 people, a rocket designed specifically for the flight trajectory, a senior engineer at the expense of on the spot.

1996年2月15日，长征三号乙首飞发射国际通信卫星708，火箭起飞22秒以后姿态失控，满载燃料的火箭撞向距发射塔架1850米的山坡上，爆炸的地点正好在航天工程技术人员住的宿舍附近，强烈的气浪瞬间冲垮了钢筋水泥的建筑，死亡6人、伤57人，一位专为火箭设计飞行弹道的高级工程师当场牺牲。

The rocket, called Bumper 2, was an ambitious two-stage unit made using a captured German V-2 missile and an American-manufactured Corporal rocket.

这个被称作&保险杠 2（Bumper 2）&的火箭是极富有挑战的两级单元组成，一个是缴获的德国V-2火箭另一个是美国造的下士火箭。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。